Improvement in stump-extractors



N liniedtetea aan com.

Letters Patent No. 97,461,1lated Nove/mbar 30, 1869,.

IMPROVEMENT 1N STUMEXTRACTORS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom l1t/may concern Be it known that I, GEORGE W. 'Towssnsm of Galesburg, in the 'county of Kalamazoo, and in the State of Michigan, have invented new and useful Improvements in Stump-Extractors and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters` of' reference marked thereon.

My invention is intended as an improvement on the patent granted to me April 30,1867, for stump-extractor; and consists in the construction and genen-al arrangement offthe parts constituting the same.

In order to enable others skilled in the art to which my invention appertains, to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, which form a part of this specification, and in which- Figure l is a plan view of' my extractor.

Figure 2 is an end view ofthe same, part of the frame being removed.

Figure 3 is a section view of my machine.

Figure 4 is a plan view of the tongue.

Letter A represents the frame of my machine, which may be made of' any suitable size and shape, and which rests upon four rollers, B, two upon each side of' the frame. By means of' these, the frame can be swung around to any `desired angl, and serve as runners when the machine has to be drawn endways.

Placed uponmtlie top of the frame is the large driving-wheel C, by means of which the motion is 'com- Inunicated tothe other two, for the purpose of' operating the two draught-bars.

The lower end of the shaft, upon which this wheel revolves, has its bearings upon a beam or cross-piece, 1), which is so hung upon the frame that the wheel can be tilted from one side to the other.

Just above the wheel there is a collar around it, so as to prevent it from being raised upward, and then passes through the lever E, by means of which the .wheel C is moved from one side to the other.

One end of' this lever is pivoted to a cross-piece ou top of the frame, while the other end passes under a guide, and then has its end passed through an opening in the spring F, so as to retain it in place.

To the upper eudof this shaft is attached the draught-bar G, to which attached the horses or other motive-power.

This bar has au opening or slot cut in its end large enough to pass over the top of' the shaft H, and then has a piu or bolt passed through.

By boit-ing this bar on in this manner, it can be raised up and down, so as to suit any variance in the ground.

The horses, in drawing this bar, may either pass all around the frame o1: go only part of the way, and then reverse the motion. y

Passing through the flame there is a double-cranked axle, I, `which has a small wheel .on one end, and a large one on the other'.

When it is desired to impart power to the two bars which exert the power upon the stump, the wheel Q tilted over by means of the lever- E, so as to gear with the large wheel K, but when rapidity more than power is wanted, it is tilted over so as to gear with.

the small one L.

'l Secured to each one of the cranks on the axle l,

there is a long draughtbar, M, both of which havetheir ends formed like a hook, so as to catch iu the openings in the slide N.

`One of the rods is longer tlxantlle other, so that as the cranks move them back and i'n'ward, vthe 'longer one catches in one of thevopenings, and draws it back far enough to enable the shorter one to catch in a second, and then, while the shorter one is drawing back, the longer one again forward and catches in auother notch.

In the bottom of the frame is placed the slide N, which held down in its place by guides or bals, and which has a metal hook attached to its end,'so.that it can beattached to the stump. .Along the `topof' this slide there is a perforated mei-al plate, which prevent-s the edges of the holes in the wood Vfrom being worn, and to which the hook is` pivote-d.

l'nvorder to raise the bars M up, so to prevent them from catching in the slide, a lever, `O, attached by ropes or chains to the ends of' them, pivotod to the side oi' the frame.

Having thus described my invention,

\V hat I claim, and desire to see-nre by Letters Patent, is v 1. Placing the frame upon the rollers B, when arranged in the manner and for the purpose specified.

The double-crank axle I, when provided with a large and a small wheel, li and'L, substantially as and for the. purpose specified.

3. The manner of placing the wheel C upon the bar I), so that it can be tilted iiom one side to the other, substantially as sct lbrth.

4. The wheel C, in combination with the lever E and spring F, when used in the manner specified.

5. The manner of attaching draught-rod G to the axle H, in the manner and for the purpose specified.

(i. In combination with the double-crank axle I, the two bars M and lever f), win-ni used substantially as specified.

7. The arrangement and combination of the wheels C, K, and L, lever E, crank-axle I, bars M, slide N, and spring F, when all are used to form a machine in the manner and for the purpose described.

In testimony' that I claim the foregoing, I have hercunto set my hand, this 25th day of March, 186i).

Titnesses (i. W. Coon, dso. L. COCK. 

